从结构、工作原理和安装定位方面，介绍了一种具有轴向位移补偿和径向支撑功能的动密封装置。

A type of dynamic seal device with functions of axial displacement compensation and radial support, is introduced from respects of structure, working principle and installment localization.

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内置的止动装置为动力执行机构提供行程保护，并且作为参考坐标在开启和关闭位置定位阀瓣。

Internal stops provide positive over travel protection for power actuated valves and act as a reference to position the discs in the open and closed positions.

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带有100个定位的机械止动装置，每一循环允许对运转有准确精密的控制。

The mechanical detent with 100 positions per revolution permits precise and exact control of movement.

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